Trimming machine



. F. H. WARREN TRIMMING MACHINE Filed Sept. 29, 1920 Patented fapr.fill, W23; e

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FRANK H. WARREN, OF SWAMESCOTT, LASSACHSETTS, ASS-GNR T0 'UNITED SHOEIIIACHINERY CORPORATION, OF PATERSGN, NEW A COEPOB-ATIO'N GF NEW/VJERSEY.

TRIMMNG MACHINE.

Application filed September 29, 1920. Serial No. 413,465.

To all whom t may concern.'

Be it known that I, FRANK H. YWARREN, a citizen of the United States,residing at Sivampscott, in the county of Essex and State oflilassachusetts, have invented certain new anduseful Improvements inTrimming Machines; and l do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to malte and use thesame.

The present invention relates to trimming machines for use vin themanufacture of boots and shoes7 and has special reference to suchmachines for trimming vthe projecting y edges of the upper materialsincluding the vamp and lining of alasted shoe preliminary to the inseamsewing operation.

y Commercial machines of this type are usually providedivith areciprocating trim ming knife that works across a shearing face at oneend of a guidev roll, the other end of the guidel roll being arranged toengage the sole of the shoe to act as a distance gage to determine theheight of the trimming cut. The guide roll is driven and its peripheralsurface is frusto-conical and lrnurled so that it mayvact to feed andguide the Work and to turn up the projecting edges of the vamp andlining to present them to the trimming knives. Vfith the use of thisguide roll, however, fory the operator to exercise a high degree of carein order to guidek and feed the Work properly and also the roll isunable in many cases to actl properly on the edges of the vamp andlining particularly at the tip of a pointed toe shoe. ln applicantsco-pend ving application, tiled of even date herewith, a machine isdisclosed in which the guide roll is provided with aflange yor button atits lower end to engage the root of the channel of the sole so that theroll may act as a combined channel guide to guide the Work and a guidefor presenting the projecting edges of the vamp and lining to thetrimming means. On different classes of Work, however, it is desirableto make the line of the trimming cut at different distances from thesole of the shoe and with the use of a guide roll acting as adistance'gage to determine the height of the trimming cut, it is obviousthatrolls of dierent heights it is necessary must be employed for thedifferent classes of Work. y i

Thev principal object 0f the present invention is to provide a machinefor trimming the projecting edges of the vamp and lining of a lastedshoe preliminary to the inseam serving operation that overcomes thedisadvantages of the prior constructions, Whilel retaining all of theadvantages.

The illustrated construction comprises a novel combination consisting oftrimming means and channel guide, the trimming means including a drivenroll and a reciprocatory knife arranged to cooperate with a shearingaction, and the channel guide icing arranged to guide the upper materialto the periphery of the shearing roll While bearing in the channel toregulate the closeness of trimming.

rlhe less erect portions of the material to be trimmed first engage thechannel guide, which is in advance of the shearing roll, and are therebyturned or bent up from the sole far enough to insuretheir engaging theperiphery of the shearing roll instead of passing under the roll, and asthey continue to move ahead they are deflected into the field oftrimming by the periphery of the roll. Thus, the less erect portionspass through tvo successive stages of erection leading to the field oftrimming. Preferably this channel guide is constructed and arranged toturn up and present the projecting edges of the vamp and lining to thetrimming means and is adapted to facilitate trimming around the toe of apointed shoe.

@ther features of the' present invention consist in certainconstructions, arrangements and combinations of parts hereinafterdescribed and claimed, the advantages of Which will be obvious to thoseskilled in the art.

rlhe several features of the present invention Will be clearlyunderstood from the following description and accompanying drawings, inWhich:

Figure l is a right side elevation of a portion of the head of atrimming machine embodying the features in their preferred form; Fig. 2is a rear elevation ofv a portion of the machine illustrated in Fie". l;Fig. 3 is a detailedsectional plan vieu7 of a por,-

l' provided with :L trz tion of the operating instruinenteiities of themeehine; and Fig. L 1s a. left 51de eleve- 1tion of portion of "chemachine iilnstrateci The r achille illes lted. in the crawings l ninning knife 2st-nd a. knife guard The Lu''neming knife 1s reciprocate@in e eireuier path about e. pivot anal the knife gue-rd is formed on a.block 8 secured by a screw l() to "she frame @if the machine. Thetrimmngviinie 'werk-5 across shearing face 12 the upper end of guide roile Carried by a driven shaft 16.

The. pe 'iphez'ei nrfnee o the guide roil is rnerogeeneei and issgireiiy milled 0r i"`he iiinstreted neei'ii'ne eine preided. with a non',.inxped ringer 17 orrnei on e bloei: 1S and. .1. i to engage theinsoie ani?. the vamp. i

deck 18 ie secured by a beit. 2O a ii-'a iong'ne tn ite n bar 22 E.wei-dig! i in leek L i1 zf enfgfne an@ groeve connection-re .r bied; 2e.virieinn rw-.LQ i); e tengne and i' guard biere e. The guide lei 11iises the guide rifle that are nenziily e eyed en Lilie yne i ingnnigiline. i is of 7"" I @ugelli *Le en ung .rV mais in various Ways 1;@"eddy and gilde the bey of the Shoe z While guiding rige instant-linginargii .L1 pertien mi the vnnip to the reily and evening nim/y erirregnie'r forineifins thereof. This especially ech'antegeone whenWorking around the tee A'\'-.fi1er`e th'eway 'formations are morenumerous and vmore marked.

it' has been feund in trimming machines O'fiiie type einieying a. servese dietancegafge. 'hm the upward pressure ei the Werk pieces a Severestrain ngen' ti e bearings of ie simi and roil and het the sieftendbevringgi; Soon become Worn. in the presentinncinne, however, the

finger l? reiieres the shaft and Ybemine iren the upward pressure of "hewerk.

.in order to Yury the he L 1 reif the rrun- -1- e nner;

ming cnt, the fin r L( tiealy and Wizmn .Lini's fieterinined by :z

niet 3U iiirengii which the Screw l0 .en nde. The .ringer 3.7 m130-hai;provision for adjustguide roll' Winieh sation iontgjitndiimliy of' the-1 nevereeiy eiie sinn nel to hat the ef 'file vamp i euri Lili) wiiieie VL. and. 3% in 'air ireiy.

"finie it is pre `file Speciiie eenernetien and ar engem eti? parteiiinsnnv'effi und deqeribed, it is Le 'ne undere'eeii #imi finiselisir-(wen und errungeni n4; net mini exeep 'far es speried in thechime, un nef; be Changed or mofi i if '-1 broader fed wihen departingreni ne '-re; of "the invention.

and scope e tile pr e' been indicated, and.

chine einbedying the Seremi euiures 'in ir their preferred` inve erm.raving ivan epeeii'ieaiif @ascribed niiet eiennefi l. nnif'hineComprising means unplug maier-.iai 'imm un n ef die upper en the r ei?the Seix, and `e "i te jre'jec inte f 1 'sm-n up die eimnnei lffhweinentwirszrid reil :ind te eseness mf trinnning.

ming' machine coniprieing rinm'iin Aurnine .n'iteriei from n er. theupper en the 1 u.. Sani 1nem1einQlmii .Qi te engage the innerside te..in ndvrniee OEE enf-(i .roll te reguliere the Giese-ness @E Mummy.; and1e guide gerd lne roeio seid mil.

nime-trimming lneehine i comprising ineens for trimming Surplusnmeriuifrom the nnifrvginel portion ef the upper on the beifnn einlasted shoe, Seid means including zroil arranged to run en the nnereideof Vthe che wel Hap ofi? the sole, and means orlnefi and arf-ange@ toturn np the Chmn nel .Tian in :advance oseid rollend to guide seidmarginal pertien of the 'upper to the ieiiivei: irimnnnf, l

A sheetrinnning mnchine comprising ineens 'arranged fo trim surplus`1na.*ce1.1'.z1l rem the merginei prton ci? the vamp dinginp 'irein the`eeie of n lasted shoe,

Heels ifen'ied ami er ringed te erect Such of? sind marginal .pei-:menVas ere 1mtleii'* ineiined reward the rnidcile `of the .Sele

Vre'ii.

5. A trimming -lnachi-ne 'for use inthe nmnuiaeture of boots and shoeshaving, n eolnblnetroil, a guide roll-having e shearing ini ie nerirnned, and menne eng Lim Sele en@ sud me fece ai one end and its`other end directed toward' fthesoieef e lastedlshoe placed` nA themachine, a trimming knife Working across said shearing face to cooperatetherewith to trimthe projecting edge of the vamp of the shoe, and adistance gage formed and arranged to determine the height of thetrimming out and to deflect the margin of the vamp toward the peripheryof the guide roll.

6. A shoe-trimming machine comprising means arranged to trim surplusmaterial Vfrom the marginal portion of the vamp a lasted shoe,V

standing' up from the sole of said means including a shearing roll, anda channel-guide formed and arranged to guide said marginal portion tothe periphery of said roll while bearing in the channel to regulate thecloseness of trimming.

'7. A shoe-trimming machine comprising means arranged to trim surplusmaterial from the marginal portion of the vamp standing up from the soleof a lasted shoe, and a member arranged to engage said marginal portionin advance of said trimming means to turn up partially the less erectportions of said surplus material, said trimming means including amember formed and arranged to complete the turning up of said less erectportions.

S. A shoetrimming machine comprising cooperative shearing membersarranged to trim surplus material front the marginal portion of the vampstanding up from the bottom of a lasted shoe, one of said members havinga surface yleading to the field of trimming to deflect such surplusmaterial to said field, and a member formed and arranged to turn up lesserect portions of said surplus material sufliciently to insure theirdeflection by Said surface into the field o'f trimming.

9. A shoe-trimming machine comprising three members, two of Which arearanged and operated to trim surplus material from the marginal portionof the vamp standing up from the bottom of a lasted shoe, and two ofwhich are formed and arranged to turn up, in two successive stages, theless erect portions of said surplus material.

l0. A shoe-trimming machine comprising means arranged to trim surplusmaterial from the marginal portion of the vamp standing up from the soleof a lasted shoe, said means including a shearing roll, and achannel-guide arranged to turn up the channel-flap of the sole to run onthe periphery of said roll and to maintain said channelflap out of theiield of trimming.

1l. A shoe-trimming machine comprising cooperative shearing membersarranged to trim the projecting edge of the vamp of a lasted shoe, one'of said members being a roll arranged so that its periphery will run onthe inner surface of the vamp, and a member having a work-engagingsurface constantly adjacent to said periphery to guide the vamp` to thelatter. Y

l2. A shoe-trimming machine comprising cooperative shearing membersarranged to trim the pr jecting edge of the vamp of a lasted shoe,v oneofsaid members being a roll arranged so that its periphery will run onthe inner surface of the vamp, and a member having a Work-engagingsurface tangential to said periphery to guide the vamp to the latter,said member being formed Ato engage the sole of the shoe so as todetermine the height of the trimming cut While guiding the vamp asaforesaid.

FRANK H. lVARREN.

